2003•Journal of Analytical ScienceRequires access

Catalytic Spectrophotometric Determination of Trace Manganese (II) with DBKAA

Luo Chuan

Abstract

A new catalytic spectrophotometric method for the determination of trace amount of manganese(Ⅱ) has been developed. The method was based on oxidation of DBKAA by potassium periodate in HAc NaAc medium in the presence of NTA as activator and CTMAB as sensitizer. The reaction conditions have been discussed. The detection limit of the method was 4.10×10 -11 g/mL. The linear range of the determination was 0~14 μg/L for Mn(Ⅱ). Satisfactory results were abtained for the determination of Mn(Ⅱ) in food and aluminum alloy.

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Key concepts: Chemistry, Potassium periodate, Manganese, Detection limit, Periodate, Catalysis, Linear range, Spectrophotometry